WO2022193445A1 - 具有排液功能的聚结滤芯 - Google Patents

具有排液功能的聚结滤芯 Download PDF

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Publication number
WO2022193445A1
WO2022193445A1 PCT/CN2021/098053 CN2021098053W WO2022193445A1 WO 2022193445 A1 WO2022193445 A1 WO 2022193445A1 CN 2021098053 W CN2021098053 W CN 2021098053W WO 2022193445 A1 WO2022193445 A1 WO 2022193445A1
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WO
WIPO (PCT)
Prior art keywords
coalescing
layer
support frame
liquid
filter element
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PCT/CN2021/098053
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English (en)
French (fr)
Inventor
常程
姬忠礼
陈锋
刘震
吴小林
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中国石油大学(北京)
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Application filed by 中国石油大学(北京) filed Critical 中国石油大学(北京)
Publication of WO2022193445A1 publication Critical patent/WO2022193445A1/zh
Priority to US18/153,094 priority Critical patent/US20230158434A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/003—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions including coalescing means for the separation of liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/003—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions including coalescing means for the separation of liquid
    • B01D46/0031—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions including coalescing means for the separation of liquid with collecting, draining means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B01D53/266—Drying gases or vapours by filtration
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
    • C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
    • C10L3/10—Working-up natural gas or synthetic natural gas
    • C10L3/101—Removal of contaminants
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
    • C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
    • C10L3/10—Working-up natural gas or synthetic natural gas
    • C10L3/101—Removal of contaminants
    • C10L3/106—Removal of contaminants of water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2265/00—Casings, housings or mounting for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2265/06—Details of supporting structures for filtering material, e.g. cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2275/00—Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2275/10—Multiple layers

Definitions

  • the invention relates to the technical field of natural gas transportation, in particular to a coalescing filter element with a liquid draining function.
  • pipeline transportation in natural gas transportation technology is the best way to realize long-distance transfer of a large amount of oil and gas resources.
  • a compressor station In order to realize long-distance transportation, a compressor station should be set up along the pipeline to pressurize the natural gas, and the core power equipment of the compressor station is the compressor.
  • the natural gas extracted from the ground will entrain some minerals, clay, water, condensate and other impurities to varying degrees. If solid particles or droplets enter the compressor, it will cause wear, corrosion or thermal strain of the blades or dry gas sealing system. , which will cause the compressor to stop in severe cases.
  • the natural gas entering the station generally passes through cyclone separators, filter separators and coalescers in sequence to remove solid and liquid impurities entrained in the gas.
  • the coalescer is mainly used to remove droplets below 1 ⁇ m, and its core component is the coalescing filter element.
  • the structure of the coalescer used in the prior art is provided with a tube sheet 100 inside the coalescer, and the tube sheet 100 divides the interior of the coalescer into two parts, an upper part and a lower part, wherein the lower part is Liquid-containing gas chamber, and the upper part is a clean gas chamber.
  • the gas containing droplets enters the liquid-containing gas chamber through the inlet 200 of the coalescer, and enters the inner side of the coalescing filter element 300 from the bottom opening of each coalescing filter element 300 under the action of the gas driving force.
  • the pores of the filter material on the inner wall of 300 enter the coalescing filter element 300, and the droplets are coalesced (the process in which tiny droplets in the gas collide, coalesce, and merge into larger droplets inside the filter material) and then change into a liquid form. It is discharged from the outer wall surface of the coalescing filter element 300, and the discharged liquid falls to the tube sheet 100 under the action of gravity, and then the liquid is discharged from the coalescer through the first liquid discharge port 400 in the lower part of the clean gas chamber; The outer wall of the filter element 300 is discharged, and then discharged to the subsequent section through the outlet 500 passing through the upper part of the clean gas chamber.
  • Liquid port 600 exits the coalescer.
  • the coalescing filter element 300 has an inner support frame 3001 as a support, and the outer side of the inner support frame 3001 is wound with a coalescing layer filter material 3002 (filter element).
  • the filter material 3002 is fixed, and the drainage layer filter material 3004 is further wound on the outside of the outer support skeleton 3003 (the single-layer fiber filter material in the filter element used to discharge the coalesced liquid to the outside, which can cause secondary entrainment of the coalescence layer.
  • Large droplets are intercepted, usually composed of polymer fibers such as aramid, located on the outside of the filter element), and the inner support skeleton 3001, coalescing layer filter material 3002, and outer support are matched by the filter element lower end cover 3005 and the filter element upper end cover 3006. Both ends of the skeleton 3003 and the filter material 3004 of the drainage layer are sealed, so that the gas containing liquid and dust can only pass through the coalescing filter element 300 in the radial direction to achieve the effect of coalescing filtration.
  • coalescing filter elements usually have the following disadvantages during operation:
  • the coalescing layer filter material in the existing coalescing filter element is made of multiple layers of high-precision fiber materials that are tightly wound or folded. During the coalescing filtration process, a large amount of liquid will be captured by the fiber material and block the pores of the filter material, resulting in The filtration efficiency is gradually reduced;
  • the captured liquid will migrate to the outside of the filter element, and a liquid film will be formed on the outer surface of the coalescing layer of the filter element.
  • the appearance of the liquid film will cause the pressure drop of the filter element to increase suddenly, and the energy consumption of the system will be significant.
  • the gas passing through the liquid film will cause the liquid film to rupture, and the ruptured liquid film will form a large number of small droplets, resulting in a significant decrease in the gas-liquid separation effect;
  • the coalescing filter element is mostly cylindrical, with a length of about 0.9m to 1.8m. In actual use, the coalescing filter element is placed vertically. This placement method will cause the liquid captured by the coalescing filter element to be in the vertical direction. The distribution is uneven, and the closer to the bottom of the filter element, the more serious the liquid blockage in the filter material, and the correspondingly the secondary entrainment of droplets (the process of droplets entering the gas phase again under the action of air flow after separation from the gas phase) is more obvious, seriously affecting.
  • the liquid content in other filter materials adjacent to the bottom will increase under the action of capillary, which further reduces the interception effect of fibers on droplets, resulting in filtration. Efficiency is reduced.
  • the purpose of the present invention is to provide a coalescing filter element with a drainage function, which is provided with an inner and an outer double coalescing structure, and a drainage space is reserved between the inner coalescing structure and the outer coalescing structure, and the inner coalescing structure
  • the liquid obtained by the coalescing of the components enters the drainage space, which greatly reduces the amount of liquid that needs to be processed by the outer coalescing components, effectively avoids the influence of excessive liquid on the filtering effect of the outer coalescing components, and effectively prolongs the service life of the overall filter element. Reduce energy consumption.
  • Another object of the present invention is to provide a coalescing filter element with a drainage function, wherein the inner support frame and the outer coalescing part adopt an upper and lower segmented structure, and the filter material in the inner coalescing part adopts a gradient aperture arrangement, It can effectively suppress the sudden rise of pressure drop, realize the timely discharge of the liquid captured by the inner coalescing part, and the secondary entrained droplets appearing in the inner coalescing part will also be fully intercepted by the outer coalescing part, which significantly improves the filtration efficiency of the filter element.
  • the present invention provides a coalescing filter element with a liquid draining function.
  • the coalescing filter element with a liquid draining function includes an inner coalescing part for intercepting a large amount of liquid mixed in the gas and a small amount of liquid remaining in the gas.
  • the outer coalescing part of coalescing filtration where:
  • the inner coalescing member and the outer coalescing member are both vertically arranged cylindrical structures with open ends, the outer coalescing member is sleeved on the outer side of the inner coalescing member, and the inner coalescing member is sleeved.
  • An annular drainage space is left between the coalescing member and the outer coalescing member, the top end of the inner coalescing member and the top end of the outer coalescing member are provided with upper end caps, and the bottom end of the inner coalescing member
  • the bottom end of the outer coalescing part is provided with a lower end cover, and an air inlet communicated with the inner side of the inner coalescing part is opened on the lower end cover.
  • the coalescing filter element with liquid drainage function includes an inner coalescing part and an outer coalescing part, and the inner coalescing part plays the role of intercepting a large amount of liquid mixed in the gas, 80% to 90% of the gas The amount of liquid will be captured, thereby greatly reducing the amount of liquid that needs to be separated in the outer coalescing part. Therefore, the outer first coalescing layer in the outer coalescing part can use high-precision filter media, so that in the realization of The high filtration efficiency can significantly reduce the clogging of the liquid inside it, so that the effective area of the outer first coalescing layer that intercepts the droplets for a long time is guaranteed, so that the entire filter element is in high-efficiency filtration.
  • the filter element is at least 2 to 3 times longer than that, effectively reducing the cost of use.
  • the droplets formed by the rupture of the liquid film will also be intercepted by the outer first coalescing layer, preventing them from directly entering the downstream of the filter element.
  • the two filter materials used in the inner first coalescing layer and the inner second coalescing layer have the same wettability, and the two filter materials from the inside to the outside have the same wettability.
  • the pore size is gradually increased, so that the liquid can move smoothly between the inner first coalescing layer and the inner second coalescing layer, without causing the difference in wettability or reducing the flow area to make the inner first coalescing layer.
  • the liquid film can only be formed on the outer surface of the filter material with a larger pore size (ie: the inner second coalescing layer), which effectively reduces the pressure drop of the coalescing filter element and ensures that the normal use of the filter element.
  • the lower part of the inner first support frame is a blocking member without ventilation holes, which can make the liquid discharged from the inner coalescing part slide down into the drainage space, or the liquid Remaining at the position where the height of the lower part of the inner coalescing layer is equal to the height of the plugging element, the gas can pass through the inner coalescing part above the sealing part smoothly, and will not directly affect the liquid in the drainage space and the lower part of the inner coalescing layer.
  • the coalesced filtered liquid forms an impact, which can effectively reduce the occurrence of secondary entrainment of droplets.
  • the second outer drainage layer is made of hydrophobic filter material, and the second outer coalescing layer includes a super lyophilic layer and a super lyophilic layer covered on the outside of the super lyophilic layer.
  • Liquid layer when the liquid discharged from the inner coalescing part slides into the drainage space, the liquid can be absorbed by the second outer coalescing layer in a short time and drain the filter element through the second outer drainage layer, avoiding the liquid in the drainage space
  • the accumulation inside and the infiltration of the inner coalescing part can further reduce the risk of secondary entrainment of droplets and ensure that the coalescing filter element can work efficiently for a long time.
  • Fig. 1 is a schematic structural diagram of a coalescer in the prior art.
  • Fig. 2 is a schematic structural diagram of a coalescing filter element in the prior art.
  • FIG. 3 is a schematic cross-sectional view of the position C-C in FIG. 2 .
  • FIG. 4 is a schematic structural diagram of the coalescing filter element with the function of draining liquid according to the present invention.
  • FIG. 5 is a schematic cross-sectional view of the position A-A in FIG. 4 .
  • FIG. 6 is a schematic cross-sectional view of the position B-B in FIG. 4 .
  • Fig. 7 is a schematic view of the structure of the upper end cap of the coalescing filter element having the function of draining according to the present invention.
  • Fig. 8 is a front cross-sectional view of the upper end cap of the coalescing filter element having the function of draining according to the present invention.
  • Fig. 9 is a schematic view of the structure of the lower end cap of the coalescing filter element having the function of draining according to the present invention.
  • Fig. 10 is a front cross-sectional view of the lower end cap of the coalescing filter element with the function of draining according to the present invention.
  • Fig. 11 is a schematic structural diagram of the connecting piece in the coalescing filter element with the function of draining according to the present invention.
  • Fig. 12 is a front cross-sectional view of the connecting piece in the coalescing filter element having the function of draining according to the present invention.
  • FIG. 13 is a schematic structural diagram of the inner first support skeleton in the coalescing filter element with liquid drain function of the present invention.
  • the present invention provides a coalescing filter element with a liquid draining function.
  • the coalescing filter element with a liquid draining function includes an inner coalescing part 1 and an outer coalescing part 2, and the inner coalescing part 1 is used for The large amount of liquid mixed in the gas (ie: natural gas) is intercepted, and the outer coalescing part 2 is used for coalescing and filtering the remaining small amount of liquid in the gas.
  • the inner coalescing member 1 and the outer coalescing member 2 are both cylindrical structures arranged in the vertical direction and open at both ends, the outer coalescing member 2 is fixedly sleeved on the outside of the inner coalescing member 1, and the inner coalescing An annular drainage space 3 is left between the component 1 and the outer coalescing component 2, so that the inner coalescing component 1 cooperates with the outer coalescing component 2 to form a double-layer drainage structure.
  • the top end and the top of the outer coalescing part 2 are provided with an upper end cover 4, and the top opening of the inner coalescing part 1 and the top of the drainage space 3 are blocked by the upper end cover 4;
  • the bottom end of the coalescing member 2 is provided with a lower end cover 5, and the lower end cover 5 is provided with an air inlet 503 that communicates with the inner side of the inner coalescing member 1, and the bottom of the drainage space 3 is blocked by the lower end cover 5,
  • the gas can enter into the inner side of the inner coalescing member 1 through the air inlet 503 .
  • the positions of the inner coalescing part 1 and the outer coalescing part 2 are fixed by the cooperation of the upper end cover 4 and the lower end cover 5, and the gas enters the inner side of the inner coalescing part 1 through the air inlet 503 on the lower end cover 5, Then pass through the inner coalescing part 1 and the outer coalescing part 2 in turn, the inner coalescing part 1 intercepts a large amount of liquid (about 80% to 90% of the total liquid) mixed in the gas, and the outer coalescing part 2 A small amount of liquid remaining in the gas is coalesced and filtered, which greatly reduces the amount of liquid that needs to be coalesced and filtered by the outer coalescing part 2, thus effectively avoiding the influence of excessive liquid on the filtering effect of the outer coalescing part 2, and effectively prolonging the filter element.
  • a drainage space 3 is left between the inner coalescing part 1 and the outer coalescing part 2 , and the secondary entrained droplets appearing in the inner coalescing part 1 will enter the drainage space 3 and pass through the drainage space 3
  • the outer coalescing part 2 cooperates to fully intercept the secondary entrained droplets, further preventing excessive liquid from affecting the filtration effect of the outer coalescing part 2, thereby significantly improving the overall filtration efficiency of the filter element.
  • the radial width of the drainage space 3 is 2 mm to 5 mm.
  • both the upper end cover 4 and the lower end cover 5 are provided with disc-shaped structures along the horizontal direction, and a bottom surface of the upper end cover 4 is provided with A circular first positioning groove 401 and a circular second positioning groove 402, the second positioning groove 402 is arranged on the outer side of the first positioning groove 401;
  • the third positioning groove 501 and the annular fourth positioning groove 502, the fourth positioning groove 502 is arranged on the outer side of the third positioning groove 501, the air inlet 503 is located in the middle of the lower end cover 5, and the inner coalescing part 1
  • the top is fixedly embedded in the first positioning groove 401, the bottom of the inner coalescing member 1 is fixedly embedded in the third positioning groove 501, and the top of the outer coalescing member 2 is fixedly embedded in the second positioning groove 402.
  • the bottom of the outer coalescing member 2 is fixedly embedded in the fourth positioning groove 502 .
  • the positions of the inner coalescing part 1 and the outer coalescing part 2 are fixed by the cooperation of the upper end cover 4 and the lower end cover 5, so as to ensure the stability of the overall structure of the coalescing filter element.
  • the inner coalescing component 1 includes an inner first supporting frame 101 , an inner coalescing layer and an inner second supporting frame 104 .
  • a support frame 101 and an inner second support frame 104 are both vertically arranged cylindrical structures with open ends at both ends.
  • the inner second support frame 104 is fixedly sleeved on the outer side of the inner first support frame 101, and the inner side is coalesced.
  • the layer is sandwiched between the outer wall of the inner first support frame 101 and the inner wall of the inner second support frame 104; the upper part of the inner first support frame 101 and the whole of the inner second support frame 104 are respectively uniformly distributed with a plurality of ventilation holes , so that the gas can pass through the inner first support frame 101 and the inner second support frame 104 through each ventilation hole.
  • a large amount of liquid mixed in the gas is intercepted by the inner coalescing layer of the inner coalescing part 1, so as to prevent the blockage of the outer coalescing part 2 caused by the excessive amount of liquid, and improve the coalescing filtering effect.
  • the lower part of the inner first support frame 101 is a cylindrical blocking member 105
  • the blocking member 105 is made of a blind plate without ventilation holes.
  • the current coalescing filter elements are all placed in the vertical direction (ie: vertical placement). more serious.
  • the arrangement of the blocking member 105 can make the liquid discharged from the inner coalescing part 1 all slide down into the liquid discharge space 3, or the liquid can be stored in the lower part of the inner coalescing layer at a position equal to the height of the blocking member 105, and the gas can be discharged from the sealing member 105.
  • the inner coalescing part 1 above the blocking member 105 passes through smoothly, and will not directly impact the liquid in the drainage space 3 and the liquid coalesced and filtered at the lower part of the inner coalescing layer, thereby effectively reducing the secondary entrainment of droplets. occur.
  • blocking member 105 and the inner first support frame 101 may be, but not limited to, an integral structure.
  • the height ratio of the blocking member 105 to the height of the inner coalescing member 1 is 1/4 to 1/5.
  • the inner coalescing layer includes an inner first coalescing layer 102 and an inner second coalescing layer 103 , and the inner second coalescing layer 103 is overlaid Outside the inner first coalescing layer 102, the pore size of the inner first coalescing layer 102 is smaller than that of the inner second coalescing layer 103, and the inner first coalescing layer 102 and the inner second coalescing layer 103 are of the same type.
  • the liquid has the same wettability (ie: the degree of infiltration of the liquid to the filter material, usually expressed by the contact angle between the liquid and the filter material, the contact angle less than 90° is wettable, and the contact angle greater than 90° is not wettable) .
  • the coalescing layer filter material of the existing coalescing filter element is a multi-layer high-precision fiber material (average pore size is about 1 ⁇ m to 3 ⁇ m). When the captured liquid migrates to the outer surface of the coalescing layer filter material, a layer of liquid film will be formed. , blocking the pores of the filter material, resulting in a sudden increase in the pressure drop of the filter element.
  • the inner coalescing layer of the present invention adopts two kinds of filter materials: the inner first coalescing layer 102 and the inner second coalescing layer 103.
  • the two filter materials have the same wettability and the pore sizes of the two filter materials increase sequentially from the inside to the outside. It is set in this way to make the liquid move smoothly between the inner first coalescing layer 102 and the inner second coalescing layer 103, without causing the difference in wettability or the reduction of the flow area in the inner first coalescing layer 102.
  • a liquid film appears between the inner second coalescing layer 103 and the liquid film can only be formed on the outer surface of the inner second coalescing layer 103 with a larger pore size.
  • the pore size of the inner first coalescing layer 102 may be, but not limited to, 3 ⁇ m to 6 ⁇ m
  • the pore size of the inner second coalescing layer 103 may be, but not limited to, 6 ⁇ m to 10 ⁇ m
  • the pore size of the inner second coalescing layer 103 It has more than twice the pore size of the high-precision fiber material, and the increase in the average pore size of the inner first coalescing layer 102 and the inner second coalescing layer 103 can reduce the influence of capillary action, thereby effectively reducing the overall pressure drop of the filter element and reducing filtration. energy consumption of the system.
  • the outer coalescing component 2 includes an outer first supporting frame 201 , an outer first coalescing layer 202 , an outer second supporting frame 203 and an outer first supporting frame 203 .
  • a liquid drainage layer 204, the outer first supporting frame 201 and the outer second supporting frame 203 are both cylindrical structures arranged in the vertical direction and open at both ends, and the outer second supporting frame 203 is fixedly sleeved on the outer first supporting frame
  • the outer side of the frame 201, and the outer first coalescing layer 202 is sandwiched between the outer wall of the outer first supporting frame 201 and the inner wall of the outer second supporting frame 203, and the outer first drainage layer 204 is covered on the outer second supporting frame.
  • the outer first supporting frame 201 and the outer second supporting frame 203 are respectively provided with a plurality of ventilation holes, so that the gas can pass through the outer first supporting frame 201 and the outer second supporting frame through each ventilation hole. 203.
  • the gas is coalesced and filtered through the cooperation of the outer first coalescing layer 202 and the outer first liquid draining layer 204, so as to filter out a small amount of liquid remaining in the gas.
  • the outer first coalescing layer 202 is made of high-precision filter material
  • the outer first liquid drainage layer 204 is made of hydrophobic filter material
  • the pore size of the outer first coalescing layer 202 is smaller than the outer first drainage layer. Aperture of layer 204. A small amount of liquid mixed in the gas can be sufficiently coalesced and filtered through the outer first coalescing layer 202 , and the liquid can be quickly discharged from the coalescing filter element through the outer first liquid draining layer 204 .
  • the pore size of the outer first coalescing layer 202 may be, but not limited to, 1 ⁇ m to 3 ⁇ m, and the pore size of the outer first liquid drainage layer 204 may be, but not limited to, 20 ⁇ m to 40 ⁇ m.
  • an outer third support frame 205 is provided below the outer first support frame 201
  • an outer third support frame 205 is provided below the outer first coalescing layer 202 .
  • the second coalescence layer 206, the fourth outer support frame 207 is provided below the outer second support frame 203, the outer second liquid discharge layer 208 is provided below the outer first liquid drainage layer 204, the outer third support frame 205 and the outer
  • the fourth support frame 207 is a cylindrical structure arranged vertically and open at both ends, the outer fourth support frame 207 is fixedly sleeved on the outer side of the outer third support frame 205, and the outer second coalescing layer 206 is sandwiched Between the outer wall of the outer third supporting frame 205 and the inner wall of the outer fourth supporting frame 207, the outer second liquid drainage layer 208 is covered on the outer wall of the outer fourth supporting frame 207; the outer third supporting frame 205 and the outer The four supporting frames 207 are respectively provided with a plurality of
  • the outer second liquid drainage layer 208 is made of a hydrophobic filter material;
  • the outer second coalescing layer 206 is made of a material that can quickly absorb and discharge liquid, and the outer second coalescing layer 206 includes a super lyophilic layer and a super lyophobic layer , the super lyophobic layer is covered on the outside of the super lyophilic layer, the super lyophilic layer is made of super lyophilic material, and the super lyophobic layer is made of super lyophobic material.
  • the liquid can be absorbed by the second outer coalescing layer 206 in a short period of time and transported to the second outer drainage layer 208, and then the filter element is discharged from the second outer drainage layer 208, preventing the liquid from being discharged.
  • the accumulation in the liquid space 3 and the infiltration of the inner coalescing part 1 can further reduce the risk of secondary entrainment of droplets, and ensure that the outer first coalescing layer 202 and the outer first liquid draining layer 204 are in high-efficiency for a long time. working status.
  • the resistance of the outer second coalescing layer 206 to the passage of gas under the clean body and the outer first coalescing layer 202 under the clean body are basically the same, so as to ensure that the gas passes through the outer second coalescing layer 206 and the outer first coalescing layer 206.
  • the velocity of a coalescing layer 202 remains the same, thereby improving the filtration efficiency of the coalescing filter element.
  • the material that can quickly absorb and discharge liquid used in the outer second coalescing layer 206 can be, but is not limited to, a fiber material, which can be achieved by solution modification or ion spraying on the inner side and the outer side of the outer second coalescing layer 206 respectively.
  • Different wettability is formed on both sides of the outer second coalescing layer 206 (ie: the formation of a super lyophilic layer and a super lyophobic layer), which can satisfy the functions of the outer second coalescing layer 206 for rapid liquid absorption and drainage That's it.
  • the top of the outer third support frame 205 , the top of the outer second coalescing layer 206 , the top of the outer fourth support frame 207 , and the top of the outer second liquid drain layer 208 are all connected to the blockage.
  • the tops of the components 105 are flush with each other, and the bottom of the outer third support frame 205, the bottom of the outer second coalescing layer 206, the bottom of the outer fourth support frame 207, and the bottom of the outer second drainage layer 208 are all aligned with the blocking member.
  • the bottom of the 105 is flush.
  • the outer coalescing part 2 further includes a connecting piece 209 , and the connecting piece 209 is a circular structure arranged along the horizontal direction.
  • the top surface of 209 is provided with an annular fifth positioning groove 2091
  • the bottom surface of the connector 209 is provided with a circular sixth positioning groove 2092
  • the bottom of the outer first support frame 201 the outer first coalescing layer
  • the bottom of 202, the bottom of the second outer support frame 203 and the bottom of the outer first drainage layer 204 are all fixedly embedded in the fifth positioning groove 2091, the top of the outer third support frame 205, the outer second coalescing layer 206
  • the top of the outer side of the fourth support frame 207 and the top of the outer second liquid drain layer 208 are all fixedly embedded in the sixth positioning groove 2092, and the upper and lower parts of the outer coalescing member 2 are fixed by the connecting piece 209, It is ensured that the outer coalescing part 2 has good stability

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
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Abstract

一种具有排液功能的聚结滤芯（300），包括对气体中混有的大量液体进行拦截的内侧聚结部件（1）以及对气体中剩余的少量液体进行聚结过滤的外侧聚结部件（2），其中：内侧聚结部件（1）和外侧聚结部件（2）均为沿竖向设置且两端开口的筒状结构，外侧聚结部件（2）套设于内侧聚结部件（1）的外侧，内侧聚结部件（1）与外侧聚结部件（2）之间留有环形的排液空间（3），内侧聚结部件（1）的顶端和外侧聚结部件（2）的顶端设置有上端盖（4），内侧聚结部件（1）的底端和外侧聚结部件（2）的底端设置有下端盖（5），下端盖（5）上开设有与内侧聚结部件（1）的内侧相连通的进气口（503）。

Description

具有排液功能的聚结滤芯
相关申请
本申请要求专利申请号为202110289457.9、申请日为2021.03.18、发明创造名称为“具有排液功能的聚结滤芯”的中国发明专利的优先权。
技术领域
本发明涉及天然气运输技术领域，尤其涉及一种具有排液功能的聚结滤芯。
背景技术
目前，天然气运输技术中管道运输是实现大量油气资源长距离转移的最优方式。为实现长距离输送，需在管道沿线设置压气站给天然气增压，压气站核心动力设备为压缩机。然而，从地下采出的天然气会不同程度的夹带出部分矿物、黏土、水、凝析油等杂质，如果固体颗粒或液滴进入压缩机将造成叶片或干气密封系统磨损、腐蚀或热应变，严重时将导致压缩机停机。
为了保证压缩机长周期连续运行，进站的天然气一般会依次经过旋风分离器、过滤分离器和聚结器等装置，除去气体内夹带的固体和液体杂质。其中，聚结器主要用于除去1μm以下的液滴，其核心部件为聚结滤芯。
现有技术中所使用的聚结器的结构，如图1所示，聚结器内部设置有管板100，管板100将聚结器的内部分隔为上、下两部分，其中，下部为含液气体腔室，上部为洁净气体腔室。含有液滴的气体由聚结器的入口200进入到含液气体腔室，在气体推动力的作用下由各聚结滤芯300的底部开口进入至聚结滤芯300的内侧，气体由聚结滤芯300内壁面上过滤材料的孔隙进入聚结滤芯300，液滴经聚结(气体中的微小液滴在过滤材料内部由于碰撞、聚并、融合而成较大液滴的过程)后以液体形式由聚结滤芯300外壁面排出，排出的液体在重力作用下滑落至管板100上，而后液体通过洁净气体腔室下部的第一排液口400排出聚结器；所得到的洁气体由聚结滤芯300外壁面排出，而后经由通过洁净气体腔室上部的出口500排出至后续工段。当气体中含液量过高时，部分液体将直接在聚结滤芯300内壁面被拦截，而后在重力作用下滑落至含液气体腔室底部，而后通过含液气体腔室底部的第二排液口600排出聚结器。
现有技术中所使用的聚结滤芯300的结构，如图2、图3所示，聚结滤芯300以内支撑骨架3001作为支撑，在内支撑骨架3001的外侧缠绕聚结层滤材3002(滤芯内可实现液滴聚结的多层纤维滤材，通常由玻璃纤维构成，位于滤芯的内侧)，在聚结层滤材3002的外侧设置外支撑骨架3003，通过外支撑骨架3003对聚结层滤材3002进行固定，在外支撑骨架3003的外侧进一步缠绕排液层滤材3004(滤芯内用于将聚结后的液体对外排出的单层纤维滤材，可对聚结层二次夹带造成的大液滴进行拦截，通常为芳纶等聚合物纤维构成，位于滤芯的外侧)，并通过滤芯下端盖3005和滤芯上端盖3006相配合对内支撑骨架3001、聚结层滤材3002、外支撑骨架3003以及排液层滤材3004的两端进行密封，使得含液含尘气体只能沿径向通过聚结滤芯300，达到聚结过滤的效果。
但聚结滤芯在运行过程中通常存在以下缺点：
一、现有聚结滤芯内聚结层滤材为多层高精度纤维材料紧密缠绕或折叠而成，在聚结过滤过程中，大量液体将被纤维材料所捕获进而堵塞滤材的孔隙，导致过滤效率逐步降低；
二、随着过滤过程的进行，被捕获的液体将向滤芯外侧运移，在滤芯聚结层的外表面将形成一层液膜，液膜出现会导致滤芯压降骤然增加，系统能耗显著增大，同时气体穿过液膜将造成液膜破裂，破裂的液膜会形成大量小液滴，导致气液分离效果明显下降；
三、聚结滤芯多为圆筒状，长度约为0.9m至1.8m，实际使用过程中将聚结滤芯立式放置，该种放置方式会导致聚结滤芯所捕获的液体在竖直方向上分布不均，越靠近滤芯的底部，滤材内液体堵塞情况越严重，相应地液滴二次夹带现象(液滴与气相分离后，在气流作用下再次进入气相的过程)愈加明显，严重影响滤芯的过滤效果；另外，当滤芯底部的滤材内部出现大量液体时，在毛细作用下将导致与底部相邻的其他滤材中液体含量增加，进一步降低纤维对液滴的拦截作用，导致过滤效率降低。
上述情况尤其存在于天然气长输管道压气站和海上油气开采平台等现场，当工况波动或上游来流气体内亚微米液滴含量骤然增加时，将造成滤芯效率下降、系统能耗增大。
针对相关技术中聚结滤芯过滤效果不佳、滤芯内部的孔隙易被液滴堵塞的问题，目前尚未给出有效的解决方案。
发明内容
本发明的目的在于提供一种具有排液功能的聚结滤芯，其设置有内、外双聚结结构，并在内聚结结构与外聚结结构之间预留排液空间，内侧聚结部件聚结所得液体进入至排 液空间内，极大减少了外侧聚结部件需要处理的液体量，有效避免液体过多对外侧聚结部件的过滤效果造成影响，有效延长了整体滤芯使用寿命并降低能耗。
本发明的另一目的在于提供一种具有排液功能的聚结滤芯，其内侧支撑骨架及外侧聚结部件采用上下分段式结构，同时内侧聚结部件中的过滤材料采用梯度孔径排布，能够有效抑制压降骤然上升，实现内侧聚结部件捕获的液体及时排出，而内侧聚结部件出现的二次夹带液滴也会被外侧聚结部件充分拦截，显著提高滤芯过滤效率。
本发明的目的可采用下列技术方案来实现：
本发明提供了一种具有排液功能的聚结滤芯，所述具有排液功能的聚结滤芯包括对气体中混有的大量液体进行拦截的内侧聚结部件以及对气体中剩余的少量液体进行聚结过滤的外侧聚结部件，其中：
所述内侧聚结部件和所述外侧聚结部件均为沿竖向设置且两端开口的筒状结构，所述外侧聚结部件套设于所述内侧聚结部件的外侧，所述内侧聚结部件与所述外侧聚结部件之间留有环形的排液空间，所述内侧聚结部件的顶端和所述外侧聚结部件的顶端设置有上端盖，所述内侧聚结部件的底端和所述外侧聚结部件的底端设置有下端盖，所述下端盖上开设有与所述内侧聚结部件的内侧相连通的进气口。
本发明的有益效果是：
一、该具有排液功能的聚结滤芯将滤芯包括内侧聚结部件和外侧聚结部件，内侧聚结部件起到对气体中混有的大量液体进行拦截的作用，气体中80％至90％的液体量将被捕获，由此极大减小了外侧聚结部件所需分离的液体量，因此，外侧聚结部件中的外侧第一聚结层就可以采用高精度滤材，从而在实现高过滤效率的同时能够显著降低液体在其内部的堵塞，使得在长时间内拦截液滴的外侧第一聚结层的有效面积得到保证，使得滤芯整体处于高效过滤的运行时间与现有聚结滤芯相比至少延长2倍至3倍，有效降低使用成本。另外，气体在穿过内侧聚结部件上所形成的液膜后，液膜破裂所形成的液滴也会被外侧第一聚结层拦截，避免其直接进入滤芯下游。
二、该具有排液功能的聚结滤芯中，内侧第一聚结层和内侧第二聚结层所采用的两种滤材具有相同的润湿性，且由内至外两种滤材的孔径逐渐增大，使得液体在内侧第一聚结层和内侧第二聚结层之间能够平滑运移，不会造成因润湿性差异或流通面积减小而使得在内侧第一聚结层与内侧第二聚结层之间出现液膜，液膜只能在孔径较大的滤材(即：内侧第二聚结层)的外表面形成，有效降低聚结滤芯的压降，保证聚结滤芯的正常使用。
三、该具有排液功能的聚结滤芯中，内侧第一支撑骨架的下部为未开设有透气孔的封堵件，可使内侧聚结部件排出的液体均滑落至排液空间中，或液体存留于内侧聚结层下部与封堵件高度相等的位置处，气体可从位于封堵件上方的内侧聚结部件中顺利通过，不会直接对排液空间内的液体以及内侧聚结层下部聚结过滤的液体形成冲击，从而能够有效降低液滴二次夹带现象的发生。
四、该具有排液功能的聚结滤芯中，外侧第二排液层采用疏水型滤材制成，外侧第二聚结层包括超亲液层以及覆设于超亲液层外部的超疏液层，当内侧聚结部件排出的液体滑落至排液空间中，液体可在短时间内被外侧第二聚结层吸收并通过外侧第二排液层排出滤芯，避免了液体在排液空间内的积存以及对内侧聚结部件的浸润，从而可进一步降低液滴二次夹带出现的风险，保证聚结滤芯能够长期处于高效的工作状态。
附图说明
以下附图仅旨在于对本发明做示意性说明和解释，并不限定本发明的范围。其中：
图1：为现有技术中聚结器的结构示意图。
图2：为现有技术中聚结滤芯的结构示意图。
图3：为图2中C-C位置的横截面示意图。
图4：为本发明具有排液功能的聚结滤芯的结构示意图。
图5：为图4中A-A位置的横截面示意图。
图6：为图4中B-B位置的横截面示意图。
图7：为本发明具有排液功能的聚结滤芯中上端盖的结构示意图。
图8：为本发明具有排液功能的聚结滤芯中上端盖的正视截面图。
图9：为本发明具有排液功能的聚结滤芯中下端盖的结构示意图。
图10：为本发明具有排液功能的聚结滤芯中下端盖的正视截面图。
图11：为本发明具有排液功能的聚结滤芯中连接件的结构示意图。
图12：为本发明具有排液功能的聚结滤芯中连接件的正视截面图。
图13：为本发明具有排液功能的聚结滤芯中内侧第一支撑骨架的结构示意图。
具体实施方式
为了对本发明的技术特征、目的和效果有更加清楚的理解，现对照附图说明本发明的具体实施方式。
如图4所示，本发明提供了一种具有排液功能的聚结滤芯，该具有排液功能的聚结滤芯包括内侧聚结部件1和外侧聚结部件2，内侧聚结部件1用于对气体(即：天然气)中混有的大量液体进行拦截，外侧聚结部件2用于对气体中剩余的少量液体进行聚结过滤。其中：内侧聚结部件1和外侧聚结部件2均为沿竖直方向设置且两端开口的圆筒状结构，外侧聚结部件2固定套设于内侧聚结部件1的外侧，内侧聚结部件1与外侧聚结部件2之间留有圆环形的排液空间3，从而通过内侧聚结部件1与外侧聚结部件2相配合形成双层排液结构，在内侧聚结部件1的顶端和外侧聚结部件2的顶端设置有上端盖4，通过上端盖4对内侧聚结部件1的顶部开口以及排液空间3的顶部进行封堵；在内侧聚结部件1的底端和外侧聚结部件2的底端设置有下端盖5，下端盖5上开设有与内侧聚结部件1的内侧相连通的进气口503，通过下端盖5对排液空间3的底部进行封堵，气体可通过进气口503进入至内侧聚结部件1的内侧。
本发明通过上端盖4和下端盖5相配合对内侧聚结部件1和外侧聚结部件2的位置进行固定，气体通过下端盖5上的进气口503进入至内侧聚结部件1的内侧，再依次通过内侧聚结部件1和外侧聚结部件2，内侧聚结部件1对气体中混有的大量液体(约占总液体量的80％至90％)进行拦截，外侧聚结部件2对气体中剩余的少量液体进行聚结过滤，极大减少了外侧聚结部件2需要聚结过滤的液体量，从而有效避免液体过多对外侧聚结部件2的过滤效果造成影响，有效延长了滤芯整体的使用寿命并降低能耗。另外，在内侧聚结部件1与外侧聚结部件2之间留有排液空间3，内侧聚结部件1出现的二次夹带液滴会进入至排液空间3内，从而通过排液空间3以及外侧聚结部件2相配合对二次夹带液滴进行充分拦截，进一步防止液体过多对外侧聚结部件2的过滤效果造成影响，进而显著提高滤芯整体的过滤效率。
优选的，排液空间3的径向宽度为2mm至5mm。
在本发明的一个可选实施例中，如图4、图7至图10所示，上端盖4和下端盖5均为沿水平方向设置圆盘状结构，在上端盖4的底面上设置有圆环形的第一定位槽401和圆环形的第二定位槽402，第二定位槽402环设于第一定位槽401的外侧；在下端盖5的顶面上设置有圆环形的第三定位槽501和圆环形的第四定位槽502，第四定位槽502环设于第三定位槽501的外侧，进气口503位于下端盖5的中间位置，内侧聚结部件1的顶部固定嵌设于第一定位槽401内，内侧聚结部件1的底部固定嵌设于所述第三定位槽501内，外侧聚结部件2的顶部固定嵌设于第二定位槽402内，外侧聚结部件2的底部固定嵌设于第四定位槽502内。通过上端盖4与下端盖5相配合对内侧聚结部件1和 外侧聚结部件2的位置进行固定，保证聚结滤芯整体结构稳定。
在本发明的一个可选实施例中，如图4至图6、图13所示，内侧聚结部件1包括内侧第一支撑骨架101、内侧聚结层和内侧第二支撑骨架104，内侧第一支撑骨架101和内侧第二支撑骨架104均为沿竖向设置且两端开口的圆筒状结构，内侧第二支撑骨架104固定套设于内侧第一支撑骨架101的外侧，且内侧聚结层夹设于内侧第一支撑骨架101的外壁与内侧第二支撑骨架104的内壁之间；内侧第一支撑骨架101的上部以及内侧第二支撑骨架104的整体上分别均布有多个透气孔，以便气体可通过各透气孔穿过内侧第一支撑骨架101和内侧第二支撑骨架104。通过内侧聚结部件1的内侧聚结层对气体中混有的大量液体进行拦截，以防止液体量过大造成外侧聚结部件2的堵塞，提高聚结过滤效果。
进一步的，如图4、图13所示，内侧第一支撑骨架101的下部为圆筒状结构的封堵件105，封堵件105采用未开设有透气孔的盲板制成。现用聚结滤芯均沿竖直方向放置(即：采用立式放置)，越靠近滤芯的底部，滤材内液体堵塞的情况越严重，由此气体通过滤材时造成液滴二次夹带也越严重。封堵件105的设置可使内侧聚结部件1排出的液体均滑落至排液空间3中，或液体存留于内侧聚结层下部与封堵件105高度相等的位置处，气体可从位于封堵件105上方的内侧聚结部件1中顺利通过，不会直接对排液空间3内的液体以及内侧聚结层下部聚结过滤的液体形成冲击，从而能够有效降低液滴二次夹带现象的发生。
进一步的，封堵件105与内侧第一支撑骨架101可为但不限于一体结构。
优选的，封堵件105的高度与内侧聚结部件1的高度比为1/4至1/5。
在本发明的一个可选实施例中，如图4至图6所示，内侧聚结层包括内侧第一聚结层102和内侧第二聚结层103，内侧第二聚结层103覆设于内侧第一聚结层102的外部，内侧第一聚结层102的孔径小于内侧第二聚结层103的孔径，且内侧第一聚结层102和内侧第二聚结层103对同种液体具有相同润湿性(即：液体对滤材的浸润程度，通常用液体与滤材之间的接触角表示，接触角小于90°为可润湿，接触角大于90°为不可润湿)。现有聚结滤芯的聚结层滤材为多层高精度纤维材料(平均孔径约1μm至3μm)，当被捕获的液体运移至聚结层滤材的外表面时将形成一层液膜，堵塞滤材孔隙，从而造成滤芯压降骤然增加。研究表明，由液膜引起的压降主要受毛细作用影响，与纤维滤材的孔径密切相关，孔径越小，压降增加越显著。本发明的内侧聚结层采用内侧第一聚结层102和内侧第二聚结层103两种滤材，两种滤材具有相同润湿性且由内至外两种滤材的孔径 依次增大，如此设置使得液体在内侧第一聚结层102和内侧第二聚结层103之间平滑运移，不会造成因润湿性差异或流通面积减小而在内侧第一聚结层102与内侧第二聚结层103之间出现液膜，液膜只能在孔径较大的内侧第二聚结层103的外表面形成。
优选的，内侧第一聚结层102的孔径可为但不限于3μm至6μm，内侧第二聚结层103的孔径可为但不限于6μm至10μm，内侧第二聚结层103的孔径为现有高精度纤维材料孔径的2倍以上，内侧第一聚结层102和内侧第二聚结层103平均孔径的增大可减小毛细作用影响，从而有效降低滤芯整体的压降，减小过滤系统的能耗。
在本发明的一个可选实施例中，如图4、图5所示，外侧聚结部件2包括外侧第一支撑骨架201、外侧第一聚结层202、外侧第二支撑骨架203和外侧第一排液层204，外侧第一支撑骨架201和外侧第二支撑骨架203均为沿竖直方向设置且两端开口的圆筒状结构，外侧第二支撑骨架203固定套设于外侧第一支撑骨架201的外侧，且外侧第一聚结层202夹设于外侧第一支撑骨架201的外壁与外侧第二支撑骨架203的内壁之间，外侧第一排液层204覆设于外侧第二支撑骨架203的外壁上；外侧第一支撑骨架201以及外侧第二支撑骨架203上分别均布有多个透气孔，以便气体可通过各透气孔穿过外侧第一支撑骨架201和外侧第二支撑骨架203。通过外侧第一聚结层202和外侧第一排液层204相配合对气体进行聚结过滤，以滤除气体中剩余的少量液体。
进一步的，外侧第一聚结层202采用高精度滤材制成，外侧第一排液层204采用疏水型滤材制成，外侧第一聚结层202的孔径小于所述外侧第一排液层204的孔径。通过外侧第一聚结层202可对气体中混有的少量液体进行充分聚结过滤，且通过外侧第一排液层204将液体快速排出聚结滤芯。
优选的，外侧第一聚结层202的孔径可为但不限于1μm至3μm，外侧第一排液层204的孔径可为但不限于20μm至40μm。
在本发明的一个可选实施例中，如图4、图6所示，外侧第一支撑骨架201的下方设有外侧第三支撑骨架205，外侧第一聚结层202的下方设置有外侧第二聚结层206，外侧第二支撑骨架203的下方设置有外侧第四支撑骨架207，外侧第一排液层204的下方设置有外侧第二排液层208，外侧第三支撑骨架205和外侧第四支撑骨架207均为沿竖向设置且两端开口的圆筒状结构，外侧第四支撑骨架207固定套设于外侧第三支撑骨架205的外侧，且外侧第二聚结层206夹设于外侧第三支撑骨架205的外壁与外侧第四支撑骨架207的内壁之间，外侧第二排液层208覆设于外侧第四支撑骨架207的外壁上；外侧第三支撑骨架205以及外侧第四支撑骨架207上分别均布有多个透气孔，以便气体 可通过各透气孔穿过外侧第三支撑骨架205和外侧第四支撑骨架207。其中，外侧第二排液层208采用疏水型滤材制成；外侧第二聚结层206采用可快速吸排液材料制成，外侧第二聚结层206包括超亲液层和超疏液层，超疏液层覆设于超亲液层的外部，超亲液层采用超亲液材料制成，超疏液层采用超疏液材料制成，当内侧聚结部件1排出的液体滑落至排液空间3中，液体可在短时间内被外侧第二聚结层206吸收并输送至外侧第二排液层208中，再由外侧第二排液层208排出滤芯，避免了液体在排液空间3内的积存以及对内侧聚结部件1的浸润，从而可进一步降低液滴二次夹带出现的风险，并保证外侧第一聚结层202和外侧第一排液层204长期处于高效的工作状态。
进一步的，外侧第二聚结层206在洁净状体下和外侧第一聚结层202在洁净状体下对气体通过的阻力基本相同，以确保气体通过外侧第二聚结层206和外侧第一聚结层202的速率保持一致，进而提高聚结滤芯的过滤效率。
进一步的，外侧第二聚结层206所采用的可快速吸排液材料可为但不限于纤维材料，可在外侧第二聚结层206的内侧和外侧分别通过溶液改性或者离子喷涂等方法实现在外侧第二聚结层206的两侧形成不同的润湿性(即：超亲液层和超疏液层的形成)，能够满足外侧第二聚结层206快速吸液和排液的功能即可。
进一步的，如图4所示，外侧第三支撑骨架205的顶部、外侧第二聚结层206的顶部、外侧第四支撑骨架207的顶部以及外侧第二排液层208的顶部均与封堵件105的顶部相平齐，外侧第三支撑骨架205的底部、外侧第二聚结层206的底部、外侧第四支撑骨架207的底部以及外侧第二排液层208的底部均与封堵件105的底部相平齐。
在本发明的一个可选实施例中，如图4、图11、图12所示，外侧聚结部件2还包括连接件209，连接件209为沿水平方向设置的圆环状结构，连接件209的顶面上设置有圆环形的第五定位槽2091，连接件209的底面上设置有圆环形的第六定位槽2092，外侧第一支撑骨架201的底部、外侧第一聚结层202的底部、外侧第二支撑骨架203的底部和外侧第一排液层204的底部均固定嵌设于第五定位槽2091内，外侧第三支撑骨架205的顶部、外侧第二聚结层206的顶部、外侧第四支撑骨架207的顶部和外侧第二排液层208的顶部均固定嵌设于第六定位槽2092内，通过连接件209对外侧聚结部件2的上下两部分进行固定，保证外侧聚结部件2整体具有良好的稳定性。
以上所述仅为本发明示意性的具体实施方式，并非用以限定本发明的范围。任何本领域的技术人员，在不脱离本发明的构思和原则的前提下所作的等同变化与修改，均应属于本发明保护的范围。

Claims (10)

  1. 一种具有排液功能的聚结滤芯，其中，所述具有排液功能的聚结滤芯包括对气体中混有的大量液体进行拦截的内侧聚结部件以及对气体中剩余的少量液体进行聚结过滤的外侧聚结部件，其中：
    所述内侧聚结部件和所述外侧聚结部件均为沿竖向设置且两端开口的筒状结构，所述外侧聚结部件套设于所述内侧聚结部件的外侧，所述内侧聚结部件与所述外侧聚结部件之间留有环形的排液空间，所述内侧聚结部件的顶端和所述外侧聚结部件的顶端设置有上端盖，所述内侧聚结部件的底端和所述外侧聚结部件的底端设置有下端盖，所述下端盖上开设有与所述内侧聚结部件的内侧相连通的进气口。
  2. 如权利要求1所述的具有排液功能的聚结滤芯，其中，所述内侧聚结部件包括内侧第一支撑骨架、内侧聚结层和内侧第二支撑骨架，所述内侧第二支撑骨架套设于所述内侧第一支撑骨架的外侧，且所述内侧聚结层夹设于所述内侧第一支撑骨架的外壁与所述内侧第二支撑骨架的内壁之间；
    所述内侧第一支撑骨架的上部以及所述内侧第二支撑骨架上分别均布有多个透气孔，所述内侧第一支撑骨架的下部为筒状结构的封堵件。
  3. 如权利要求2所述的具有排液功能的聚结滤芯，其中，所述内侧聚结层包括对同种液体具有相同润湿性的内侧第一聚结层和内侧第二聚结层，所述内侧第二聚结层覆设于所述内侧第一聚结层的外部，所述内侧第一聚结层的孔径小于所述内侧第二聚结层的孔径。
  4. 如权利要求2所述的具有排液功能的聚结滤芯，其中，所述外侧聚结部件包括外侧第一支撑骨架、外侧第一聚结层、外侧第二支撑骨架和外侧第一排液层，所述外侧第二支撑骨架套设于所述外侧第一支撑骨架的外侧，且所述外侧第一聚结层夹设于所述外侧第一支撑骨架的外壁与所述外侧第二支撑骨架的内壁之间，所述外侧第一排液层覆设于所述外侧第二支撑骨架的外壁上；
    所述外侧第一支撑骨架以及所述外侧第二支撑骨架上分别均布有多个透气孔。
  5. 如权利要求4所述的具有排液功能的聚结滤芯，其中，所述外侧第一聚结层采用高精度滤材制成，所述外侧第一排液层采用疏水型滤材制成，所述外侧第一聚结层的孔 径小于所述外侧第一排液层的孔径。
  6. 如权利要求4所述的具有排液功能的聚结滤芯，其中，所述外侧第一支撑骨架的下方设有外侧第三支撑骨架，所述外侧第一聚结层的下方设置有外侧第二聚结层，所述外侧第二支撑骨架的下方设置有外侧第四支撑骨架，所述外侧第一排液层的下方设置有外侧第二排液层，所述外侧第四支撑骨架套设于所述外侧第三支撑骨架的外侧，且所述外侧第二聚结层夹设于所述外侧第三支撑骨架的外壁与所述外侧第四支撑骨架的内壁之间，所述外侧第二排液层覆设于所述外侧第四支撑骨架的外壁上；
    所述外侧第三支撑骨架以及所述外侧第四支撑骨架上分别均布有多个透气孔。
  7. 如权利要求6所述的具有排液功能的聚结滤芯，其中，所述外侧第三支撑骨架的顶部、所述外侧第二聚结层的顶部、所述外侧第四支撑骨架的顶部以及所述外侧第二排液层的顶部均与所述封堵件的顶部相平齐，所述外侧第三支撑骨架的底部、所述外侧第二聚结层的底部、所述外侧第四支撑骨架的底部以及所述外侧第二排液层的底部均与所述封堵件的底部相平齐；
    所述外侧第二聚结层包括超亲液层和超疏液层，所述超疏液层覆设于所述超亲液层的外部，所述超亲液层采用超亲液材料制成，所述超疏液层采用超疏液材料制成。
  8. 如权利要求6所述的具有排液功能的聚结滤芯，其中，所述外侧聚结部件还包括连接件，所述连接件的顶面上和底面上分别设置有环形的第五定位槽和环形的第六定位槽，所述外侧第一支撑骨架的底部、所述外侧第一聚结层的底部、所述外侧第二支撑骨架的底部和所述外侧第一排液层的底部均嵌设于所述第五定位槽内，所述外侧第三支撑骨架的顶部、所述外侧第二聚结层的顶部、所述外侧第四支撑骨架的顶部和所述外侧第二排液层的顶部均嵌设于所述第六定位槽内。
  9. 如权利要求1所述的具有排液功能的聚结滤芯，其中，所述上端盖的底面上设置有环形的第一定位槽和环形的第二定位槽，所述第二定位槽环设于所述第一定位槽的外侧，所述内侧聚结部件的顶部嵌设于所述第一定位槽内，所述外侧聚结部件的顶部嵌设于所述第二定位槽内。
  10. 如权利要求1所述的具有排液功能的聚结滤芯，其中，所述进气口位于所述下端盖的中间位置，所述下端盖的顶面上设置有环形的第三定位槽和环形的第四定位槽，所述第四定位槽环设于所述第三定位槽的外侧，所述内侧聚结部件的底部嵌设于所述第三定位槽内，所述外侧聚结部件的底部嵌设于所述第四定位槽内。
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103463894A (zh) * 2013-09-24 2013-12-25 中联煤层气有限责任公司 聚结过滤器及其滤芯
CN105451856A (zh) * 2013-06-24 2016-03-30 佩科平面美国公司 过滤元件、聚结挡板、过滤容器和方法
US20180085702A1 (en) * 2016-09-23 2018-03-29 Arrow Pneumatics, Inc. Apparatus for removing oil and moisture from a gas
CN108641767A (zh) * 2018-07-12 2018-10-12 佛山慧创正元新材料科技有限公司 一种天然气多级过滤机构
CN208632475U (zh) * 2018-07-13 2019-03-22 成都添益天然气压缩机制造有限公司 深度气液分离过滤器
CN109847490A (zh) * 2019-03-20 2019-06-07 中国石油大学(北京) 一种刚性气液聚结滤芯、其制备方法及装置
CN110420517A (zh) * 2019-08-13 2019-11-08 中国石油大学(北京) 聚结滤芯结构以及过滤装置
CN110917749A (zh) * 2020-01-02 2020-03-27 中国石油大学(北京) 一种气液聚结滤芯及应用和含有其的过滤装置

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3347026A (en) * 1965-01-14 1967-10-17 Mc Graw Edison Co Fluid separator
US4464186A (en) * 1983-02-09 1984-08-07 La-Man Corporation Pneumatic filter and liquid evaporator
AU661907B2 (en) * 1992-10-08 1995-08-10 Air Safe Exhaust Systems Pty. Limited Gas filter
US6235192B1 (en) * 1997-03-20 2001-05-22 Parker-Hannifin Corporation Biflow drier with improved filtration
FR2784607B1 (fr) * 1998-10-16 2001-02-09 Francois Simon Filtration de gaz par force centrifuge
DE10392976B4 (de) * 2002-07-26 2012-05-31 Bendix Commercial Vehicle Systems, Llc Lufttrocknungsanordnung, Verwendung einer Lufttrocknungsanordnung und Verfahren zum Trocknen und Filtern von Druckluft
US7323033B2 (en) * 2004-04-30 2008-01-29 Lucent Technologies Inc. Nanostructured surfaces having variable permeability
US7686859B2 (en) * 2005-08-04 2010-03-30 Johnson Controls Technology Company Coalescing filter element with drainage mechanism
DE112010002027B4 (de) * 2009-05-15 2021-12-09 Cummins Filtration Ip, Inc. Koaleszenzabscheider und Verwendung eines Koaleszenzabscheiders in einem Koaleszenzsystem
CN201524499U (zh) * 2009-05-19 2010-07-14 孟莫克化工成套设备(上海)有限公司 一种消除二次夹带的除雾器元件
CN201454299U (zh) * 2009-06-30 2010-05-12 北京三川世纪技术有限公司 一种过滤分离滤芯及组合式过滤分离器
DE102010034787B4 (de) * 2009-08-31 2016-06-23 Mann + Hummel Gmbh Filtereinrichtung mit einem ringförmigen Filterelement in einem Filtergehäuse
CN103007647B (zh) * 2012-12-05 2014-02-19 中国石油大学(北京) 用于高温气固分离的过滤管及其过滤器
CN103203143B (zh) * 2013-04-25 2014-08-27 中国石油大学(北京) 用于高温气体过滤的组合式过滤管及其过滤器
RU2657902C2 (ru) * 2013-11-27 2018-06-18 Атлас Копко Эйрпауэр Н.В. Высокообъемная коалесцирующая фильтрующая среда и ее применение
CN104324579B (zh) * 2014-10-08 2017-02-15 西安集良石油技术开发有限公司 一种单枪油气回收分离器
CN104383755A (zh) * 2014-10-08 2015-03-04 何茂林 一种油气过滤滤芯及油气分离方法
CN105771477B (zh) * 2014-12-22 2019-03-15 中国科学院过程工程研究所 一种流化雾化和液膜洗涤组合的烟气净化装置及方法
US20170028330A1 (en) * 2015-07-30 2017-02-02 Cummins Filtration Ip, Inc. Porous Filter Media for Use in Preventing Liquid Carryover
CN106194149A (zh) * 2016-07-11 2016-12-07 中国石油天然气股份有限公司 脱水滤芯、回收油井套管气的系统及其方法
CN107051016B (zh) * 2017-03-09 2023-11-10 中国石油大学(北京) 复合改性气液聚结过滤器
CN206652345U (zh) * 2017-03-27 2017-11-21 山东明化新材料有限公司 一种液沫聚结分离器
CN109758850B (zh) * 2019-03-12 2023-12-22 中国石油大学(北京) 具有预分离功能的气液聚结滤芯
CN210448403U (zh) * 2019-08-02 2020-05-05 贵州万宜亿保科技有限责任公司 一种便于携带的离线分室脉冲除尘器
CN111003748A (zh) * 2019-12-20 2020-04-14 紫荆三益过滤技术有限责任公司 一种滤芯式含油污水聚结分离器
CN211753192U (zh) * 2020-01-02 2020-10-27 中国石油大学(北京) 一种气液聚结滤芯及含有其的过滤装置
CN111389129B (zh) * 2020-04-10 2021-10-15 江苏盛伟燃气科技有限公司 一种内进外出式聚结滤芯

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105451856A (zh) * 2013-06-24 2016-03-30 佩科平面美国公司 过滤元件、聚结挡板、过滤容器和方法
CN103463894A (zh) * 2013-09-24 2013-12-25 中联煤层气有限责任公司 聚结过滤器及其滤芯
US20180085702A1 (en) * 2016-09-23 2018-03-29 Arrow Pneumatics, Inc. Apparatus for removing oil and moisture from a gas
CN108641767A (zh) * 2018-07-12 2018-10-12 佛山慧创正元新材料科技有限公司 一种天然气多级过滤机构
CN208632475U (zh) * 2018-07-13 2019-03-22 成都添益天然气压缩机制造有限公司 深度气液分离过滤器
CN109847490A (zh) * 2019-03-20 2019-06-07 中国石油大学(北京) 一种刚性气液聚结滤芯、其制备方法及装置
CN110420517A (zh) * 2019-08-13 2019-11-08 中国石油大学(北京) 聚结滤芯结构以及过滤装置
CN110917749A (zh) * 2020-01-02 2020-03-27 中国石油大学(北京) 一种气液聚结滤芯及应用和含有其的过滤装置

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